Here are some ideas of eternal characters:
ETERNAL Isaac: D infinity (normal slot), Blighted dice (pocket slot), Glitched crown
ETERNAL Magdalene: Yum heart (normal slot), Cardiac arrest (pocket slot), Candy heart
ETERNAL Cain: Bag of crafting (normal slot), Throwing bag (pocket slot), Lucky foot
ETERNAL Judas: Dark arts (normal slot), Descent (pocket slot), Judas's shadow
ETERNAL ???: The poop (normal slot), IBS, Mix (pocket slot)
ETERNAL Eve:
ETERNAL Samson: Berserk! (normal slot), Killer Instinct (pocket slot), Lusty Blood
ETERNAL Azazel:
ETERNAL Lazarus:
ETERNAL Eden: Chaos, Debug (pocket slot), Modelling clay (golden variant if possible)
ETERNAL Lost: Eternal D6 (normal slot), Divine remnants (pocket slot), Holy mantle
ETERNAL Lilith:
ETERNAL Keeper: Wooden nickel (normal slot), Turnover (pocket active), Head of the Keeper
ETERNAL Apollyon:
ETERNAL Forgotten:
ETERNAL Bethany:
ETERNAL Jacob and Esau: